| 摘要 |
PROBLEM TO BE SOLVED: To enhance detection accuracy of blocking artifacts. SOLUTION: The present invention concerns the method of detecting blocking artifacts in video data encoded and then decoded according to a block based coding technique. The method comprises the steps of calculating a first discrete transformation of a first video data segment, calculating a second discrete transformation of a second video data segment, the second segment adjacent to the first segment, and calculating a discrete transformation of a concatenated video data segment corresponding to the concatenation of the first and second segments. It also comprises a step of calculating a blocking artifact level in the content of the first and second segments of transformed video data, and the concatenated segment of transformed video data. In this way a very precise blocking artifact detection method is obtained, able to be used in a post- processing or coding of the video data. |
